java - JTable reload data -

i have following jtable in code:

string[] columnnames = {"name", "category", "seller", "sell price", "current bid", "end date", "open"}; object[][] data = getauctiontabledata(); final jtable auctiontable = new jtable(data, columnnames);  

i have button on form , wish reload data table on click of button. how do this? need use abstracttablemodel?

edit

here code button:

    refreshauctionbutton.addactionlistener(new actionlistener() {       public void actionperformed(actionevent e)     {         object[][] data = getauctiontabledata();         auctiontable = new jtable(data, columnnames);     }}); 

this code not work jtable declared final. have final because accessed inner classes (buttons, above).

it depends on want button change table.

• if button triggers updates in objects within data, need use auctiontable.update (or that).

• if triggers insertion, useful add row inserted directly auctiontable. use ((defaulttablemodel) auctiontable.getmodel).addrow(...);

• if triggers deletion, need index of row deleted. use ((defaulttablemodel) auctiontable.getmodel).removerow(...);

otherwise, i'll need more information button's action, or can make call getauctiontabledata() each time button pressed reload whole jtable's information (something might not desirable @ all).

edit

to reload whole contents while keeping final modifier auctiontable, use setdatavector method instead of re-setting table in button's action listener.

refreshauctionbutton.addactionlistener(new actionlistener() {       public void actionperformed(actionevent e)     {         object[][] data = getauctiontabledata();         ((defaulttablemodel) auctiontable.getmodel()).setdatavector(data, columnnames);     } }); 

you'll have set columnnames final well, though.